Plant Structure What is the source of free energy (ΔG) for moving protons out of mitochondria against their concentration and electrical gradients? The redox reactions of electron transport Creatine phosphate ATP Glycolysis The redox reactions of electron transport Creatine phosphate ATP Glycolysis ANSWER DOWNLOAD EXAMIANS APP
Plant Structure The element neon (Ne) has eight electrons in its outermost electron shell. How many covalent bonds will Ne readily form? Four None One Two Four None One Two ANSWER DOWNLOAD EXAMIANS APP
Plant Structure In plant cells, which of the following is not a function of the large central vacuoles of plant cells? Storage of food Waste storage water content Contractile regulation of Support Storage of food Waste storage water content Contractile regulation of Support ANSWER DOWNLOAD EXAMIANS APP
Plant Structure The mitochondria were known in the nineteenth century to be osmotically active on the basis of evidence that mitochondria were derived from a symbiotic bacterium mitochondria are surrounded by a semi permeable membrane the mitochondrial matrix is hypertonic to the cellular cytoplasm the mitochondrial matrix is hypotonic to the cellular cytoplasm mitochondria were derived from a symbiotic bacterium mitochondria are surrounded by a semi permeable membrane the mitochondrial matrix is hypertonic to the cellular cytoplasm the mitochondrial matrix is hypotonic to the cellular cytoplasm ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which of the following experimental results does not support Mitchell's chemiosmosis theory? Addition of dinitrophenol to isolated mitochondria during electron transport was shown to inhibit acidification of the medium Electron transport in isolated mitochondria was shown to result in acidification of the medium Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis An artificial proton gradient across the inner mitochondrial membrane drives ATP synthesis in the absence of electron transport Addition of dinitrophenol to isolated mitochondria during electron transport was shown to inhibit acidification of the medium Electron transport in isolated mitochondria was shown to result in acidification of the medium Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis An artificial proton gradient across the inner mitochondrial membrane drives ATP synthesis in the absence of electron transport ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which of the following is not an electron carrier class in the electron transport chain? Iron - sulfur proteins Cytochrome c oxidase Cytochromes Flavoproteins Iron - sulfur proteins Cytochrome c oxidase Cytochromes Flavoproteins ANSWER DOWNLOAD EXAMIANS APP
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